Putty Capital and Clay Labor: Differing European Union Capital and Labor Freedom Speeds in Times of European Migration. Global Journal of Management and Business Research, [S. l.], v. 16, n. 14, p. 37–47, 2016. Disponível em: https://journalofbusiness.org/index.php/GJMBR/article/view/. Acesso em: 18 oct. 2026.